The Toshiba Satellite L300 was a notebook designed and sold by Toshiba that came with a version of Windows Vista force fed. They were sold around May-June 2009 and while ineligible for the free 7 upgrade,time past and upgrades are unclaimable now,run 7 home premium well without upgrades mainly because of Vista's resource hog quality

Yours only just stopped working! Try booting from the DVD drive instead of Windows Vista (Horrible OS). But before you install Windows XP check that you can still get drivers for the computer.

My laptop died just after a year from the hard drive dying a second time and the motherboard dying. I would just buy a new computer. The machine isn't worth your time trying to fix it. I'm sure you'll find Windows 7 is quite good, Toshiba have some OK ones out at the moment but shop around, as I think Toshiba have lost their way from others and my experience with their laptops.

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tdnet, try this first. I am not sure but most certainly do not think that it is a faulty IC

If a new program has made your computer behave unpredictably, and uninstalling the new program did not help, you can try the Windows XP System Restore tool.

Important If you have not previously set a restore point in System Restore, you cannot restore your computer to a previous state. If you are not sure, or if you have not previously set a restore point, contact Support.

Restore to a point where you know your computer functioned without problems.

To start System Restore using the Command prompt, follow these steps:

Restart your computer, and then press and hold F8 during the initial startup to start your computer in safe mode with a Command prompt.

Use the arrow keys to select the Safe mode with a Command prompt option.

If you are prompted to select an operating system, use the arrow keys to select the appropriate operating system for your computer, and then press ENTER.

Log on as an administrator or with an account that has administrator credentials.

At the command prompt, type %systemroot%\system32\restore\rstrui.exe, and then press ENTER.

Follow the instructions that appear on the screen to restore your computer to a functional state.

If this does not work let us know since there is a way to repair Win without losing your info.....good luck:)

To me it sounds like windows is corrupt. It was probably a driver update or just an update from MS themselves. If you can not do a system restore because it will not let you it also could be a virus. If it works in safe mode go there back up your files and wipe it and re-install the OS. Make sure you scan your files with a antivirus before you dump them back. In the long run you will probably end up saving time going this route. The bonus is Windows will be quicker with a fresh install.

Cled Tayame thanks for the last instruction again but when i did as u instructed, it show this message "System Restore is not able to protect your computer. pleas restart your computer, and then run System Restore again..................

pls i want you to know that i have reloaded my laptop from Windows Vista to Xp at the very start when i both it cuz windows vista does not support my work thanks in advance...

,i've encountered this problem before.... i do a lot of experiments just to solve the problem by installing XP, VISTA and 7... i also tried replacing some parts except the logic board but i failed. it was proven in TOSHIBA forum that there was problem on a chipset as the laptop grow old...this model was satellite L30X series.... even toshiba did not solved the problem...

Felipe Costa, any way you could download any of the programs that are available to measure the temperature. Something like the speedfan utils and post your temp on battery power and when you plug the AC adapter in. I think this could be caused by a difference in temperature and have an idea that I would like to verify by obtaining the temperature difference.

The problem is solved partially. I put Ubuntu in safe mode graphics and it is working for more than 20 minutes now...

I've read about that before with people using Windows but I hadn't tried in Ubuntu. It crashed the first time after 3 minutes but it's working fine now.

The processor temperature is 60oC now and Hard disk is 37oC. In a momment it was 74oC no problem.

There's something weird happening I shall say. The notebook is on my legs and I feel a little eletricity escaping behind the battery. Sometimes stronger than other times. It just happens when I use the AC power.

Felipe, is there any differecne in tempearture when you run it on battery vs. AC adapter. Yes, I read the issues related to Windows and the Windows drivers as well, but there is the possibility of other issues as well. Just trying to validate something. Thanks.

hi, I solved the problem with the Toshiba Satellite Pro L-300 by disabling the secondary Processor Core thru BIOS setup. OS is now Windows XP Pro from Vista and now when I plug the ac adapter no hanging up.- Problem solved.